Results 1 to 10 of about 192,533 (186)

The observable light deflection angle [PDF]

open access: yes, 1999
The physical deflection angle of a light ray propagating in a space-time supplied with an asymptotically flat metric has to be expressed in terms of the impact parameter.Comment: 11 pages, 1 ...
Gerard, J. -M., Pireaux, S.
core   +5 more sources

Small angle electron diffraction and deflection

open access: yesAIP Advances, 2012
Electron optical system is constructed in order to obtain small angle diffraction and Lorentz deflection of electrons at the order of down to 10-6 radian in the reciprocal space.
T. Koyama   +4 more
doaj   +2 more sources

Determining the Topology and Deflection Angle of Ringholes via Gauss-Bonnet Theorem

open access: yesUniverse, 2021
In this letter, we use a recent wormhole metric known as a ringhole [Gonzalez-Diaz, Phys. Rev. D 54, 6122, 1996] to determine the surface topology and the deflection angle of light in the weak limit approximation using the Gauss-Bonnet theorem (GBT).
Kimet Jusufi
doaj   +3 more sources

Control of flow deflection angle around the corner using microjet array [PDF]

open access: yesScientific Reports
In this study, a new technique for active control of the flow around a corner is proposed and a key parameter dominating the flow deflection angle is proposed.
Yuto Nakadori   +4 more
doaj   +2 more sources

Testing new massive conformal gravity with the light deflection by black hole

open access: yesNuclear Physics B, 2023
We study the weak gravitational lensing effect of Non-Bocharova-Bronnikov-Melnikov-Bekenstein (BBMB) black hole in new massive conformal gravity. We analyze the deflection angle of light caused by new massive conformal gravity by using the Gauss-Bonnet ...
Muhammad Yasir   +3 more
doaj   +1 more source

A CFD analysis of NACA 0015 airfoil as a horizontal stabilizer with gap length variations

open access: yesJEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering), 2023
The horizontal stabilizer is an important device which stabilize in the longitudinal direction is an important device for aviation. It also controls the pitching nose through the variation of elevator deflection angle.
Gunawan Nugroho   +4 more
doaj   +1 more source

Gravitational lensing by using the 0th order of affine perturbation series of the deflection angle of a ray near a photon sphere

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
The 0th order of affine perturbation series of the deflection angle of a ray near a photon sphere is more accurate than a deflection angle in a strong deflection limit, which is used often, because the later has hidden error terms.
Naoki Tsukamoto
doaj   +1 more source

Effect of transverse airflow on the deflection of negative corona discharge on the Trichel pulse mode at atmospheric pressure

open access: yesAIP Advances, 2021
Negative corona discharge can deflect in transverse airflow in pin-to-plane electrodes at atmospheric pressure. In this paper, we investigate the mechanism of Trichel pulse discharge deflection in transverse airflow and give a further understanding of ...
Yulin Guo   +4 more
doaj   +1 more source

Uniformity Prediction of Bending Stiffness of Composite Space Mirrors With Ply Angle Misalignments by Deflection Angle

open access: yesFrontiers in Mechanical Engineering, 2022
Based on the classical lamination theory, the principal moment direction of the laminate is derived. It is 45° apart from the generalized ply angle, which is the orientation of the ply where the ply angle misalignment occurs nominally.
Qingnian Liu   +7 more
doaj   +1 more source

Light deflection angle by superentropic black holes

open access: yesInternational Journal of Modern Physics D, 2022
Motivated by recent works on light deflection and shadow behaviors on AdS geometries [S. Haroon, M. Jamil, K. Jusufi, K. Lin and R. B. Mann, Phys. Rev. D 99 (2019) 044015, arXiv:1810.04103; A. Belhaj, H. Belmahi and M. Benali, Phys. Lett. B 821 (2021) 136619, arXiv:2110.06771], we investigate the deflection angle of light rays by superentropic black ...
Belhaj, A.   +3 more
openaire   +2 more sources

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